Multiple Versions of Rails Installed

gems allows you to have multiple version of a gem. You environment.rb will have something like
RAILS_GEM_VERSION = '1.2.3' unless defined? RAILS_GEM_VERSION
at the top, just change that as desired.
Personally I always freeze my gems into vendor/rails, at which point this becomes a total non-issue.

Fred

i think it's Matz or DHH or fake steve jobs. Or the guy that wrote
the entire about.com site ;-p